The Experts below are selected from a list of 14664 Experts worldwide ranked by ideXlab platform
Masanori Koshiba - One of the best experts on this subject based on the ideXlab platform.
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a design method of a fiber based mode multi Demultiplexer for mode division multiplexing
Optics Express, 2010Co-Authors: Fumiya Saitoh, Kunimasa Saitoh, Masanori KoshibaAbstract:In the mode-division multiplexing (MDM) optical transmission system, a mode multi/Demultiplexer is an important key device for excitation, multiplication, and separation of light signals which have distinct modes. In this report, we propose a fiber-type mode multi/Demultiplexer based on selective phase matching between different cores/modes. Design method and device characteristics of 1×4 mode multi/Demultiplexer are investigated through finite element analysis. In order to expand operating wavelength range, we reveal the structural parameters that satisfy phase matching conditions over wide wavelength range. Our numerical results demonstrate that the mode multi/Demultiplexer with broadband, polarization-insensitive operation can be realized by applying the proposed fiber structure.
Yukihiro Ikeyama - One of the best experts on this subject based on the ideXlab platform.
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tunable optical ofdm Demultiplexer utilizing slab star coupler based optical dft circuit
IEEE Photonics Technology Letters, 2019Co-Authors: Koichi Takiguchi, Yukihiro IkeyamaAbstract:We report on a tunable integrated-optic circuit for demultiplexing optical orthogonal frequency division multiplexing (OFDM) signals with various number of sub-carrier channels. The Demultiplexer is composed of tunable optical discrete Fourier transform filter (tunable couplers, delay lines, and a slab star coupler) and optical gates. Various sub-carrier number optical OFDM signals can be demultiplexed by selecting the active delay lines with the tunable couplers. After explaining the Demultiplexer and its operating principle, we show some experimental results including transmittance and bit error rate measurement of demultiplexed sub-carriers from various sub-carrier number optical OFDM signals. $2 \times 10$ Gbit/s to $10 \times 10$ Gbit/s OFDM signals could be successfully demultiplexed.
Venu Gopal Achanta - One of the best experts on this subject based on the ideXlab platform.
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Table_1_Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer.docx
2019Co-Authors: Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal AchantaAbstract:We present 2-, 3-, and 6-way optical Demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The structures designed on GaAs wafers having the smallest footprint of 78 μm2, are suitable for integrating all-optical devices for planar integrated circuits.
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Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer
Frontiers Media S.A., 2019Co-Authors: Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal AchantaAbstract:We present 2-, 3-, and 6-way optical Demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The structures designed on GaAs wafers having the smallest footprint of 78 μm2, are suitable for integrating all-optical devices for planar integrated circuits
Richa Goyal - One of the best experts on this subject based on the ideXlab platform.
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Table_1_Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer.docx
2019Co-Authors: Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal AchantaAbstract:We present 2-, 3-, and 6-way optical Demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The structures designed on GaAs wafers having the smallest footprint of 78 μm2, are suitable for integrating all-optical devices for planar integrated circuits.
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Photonic Crystal Based 2/3/6- Way Optical Splitter and Demultiplexer
Frontiers Media S.A., 2019Co-Authors: Richa Goyal, Banoj Kumar Nayak, Ashwin Tulapurkar, Venu Gopal AchantaAbstract:We present 2-, 3-, and 6-way optical Demultiplexer and optical filters based on coupled waveguide and photonic crystal cavities. Demultiplexers with 3 nm channel separation and optical splitters with different transmission efficiencies are presented. The structures designed on GaAs wafers having the smallest footprint of 78 μm2, are suitable for integrating all-optical devices for planar integrated circuits
Fumiya Saitoh - One of the best experts on this subject based on the ideXlab platform.
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a design method of a fiber based mode multi Demultiplexer for mode division multiplexing
Optics Express, 2010Co-Authors: Fumiya Saitoh, Kunimasa Saitoh, Masanori KoshibaAbstract:In the mode-division multiplexing (MDM) optical transmission system, a mode multi/Demultiplexer is an important key device for excitation, multiplication, and separation of light signals which have distinct modes. In this report, we propose a fiber-type mode multi/Demultiplexer based on selective phase matching between different cores/modes. Design method and device characteristics of 1×4 mode multi/Demultiplexer are investigated through finite element analysis. In order to expand operating wavelength range, we reveal the structural parameters that satisfy phase matching conditions over wide wavelength range. Our numerical results demonstrate that the mode multi/Demultiplexer with broadband, polarization-insensitive operation can be realized by applying the proposed fiber structure.